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AR15.COM
10/2/2015 7:15:25 PM EDT
just bought a house and it has two hot water heaters both are plumbed in but only one has power to it. so i want to remove the one thats not wired. now do i just cap off the two lines going to it? or join the two lines?
10/2/2015 7:27:15 PM EDT
[#1]
Quoted:
just bought a house and it has two hot water heaters both are plumbed in but only one has power to it. so i want to remove the one thats not wired. now do i just cap off the two lines going to it? or join the two lines?
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Cap the water lines. Use a gator bite with a cap and use teflon tape or plumbers putty on any threads unless it has a seal of some sort already.

Eta, if you are unscrewing the lines as some have them now and then, just cap those lines and no gator bite is needed but just the appropriate threaded cap. Also make sure the lines are cut smooth and clean with a pipe tool if using a gator bite. Also check to confirm its not wired as it may have just tripped the breaker inside the unit.
10/2/2015 7:34:34 PM EDT
[#2]
A water heater normally doesn't require any power. (unless it's electric) If you cap the inlet/outlets your fixtures served by that water heater will have cold water only. Nothing from the hot side . If you connect the two together you will get cold water from both the hot and cold water at the fixtures. -W
10/2/2015 7:38:09 PM EDT
[#3]

plus whatever type of tubing you need to join the pipes
10/2/2015 7:46:16 PM EDT
[#4]
A gas Rinnai needs electricity.  I found out the hard way.
10/2/2015 8:03:38 PM EDT
[#5]
Quote History
Quoted:
A water heater normally doesn't require any power. (unless it's electric) If you cap the inlet/outlets your fixtures served by that water heater will have cold water only. Nothing from the hot side . If you connect the two together you will get cold water from both the hot and cold water at the fixtures. -W
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this ones electric. what would you sudjest i do then?
10/2/2015 8:04:26 PM EDT
[#6]
there is two water heaters just so everyones clear. one works one doesnt. both are plumbed in.
10/2/2015 8:15:52 PM EDT
[#7]
if you want to make it neat just heat up the T's that hook into the line and replace with a coupler.  remove old tank throw outside and the mexicans will grab it
10/2/2015 8:20:11 PM EDT
[#8]
so i just turned off the water inlet on the non working heater and everything in the house works as it should. guess ill just cap those lines off.